If you have ANY withdrawals from weed it usually only happens for about 5 days. Longest I have just felt odd as hell from stopping smoking. After a while you are normal. I know what you mean same thing happened to me when I stopped for the first time after all that heavy smoking. Not to scare anyone but...I even cut my self when I stopped smoking the first time. Don't even ask, I don't even know my self why I did it. Just know it never happened again.